|Publication number||US7066736 B2|
|Application number||US 10/302,128|
|Publication date||Jun 27, 2006|
|Filing date||Nov 22, 2002|
|Priority date||Sep 12, 2002|
|Also published as||US20040101806|
|Publication number||10302128, 302128, US 7066736 B2, US 7066736B2, US-B2-7066736, US7066736 B2, US7066736B2|
|Inventors||Ajay Kumar, Ines Aravena|
|Original Assignee||Zimmer Dental, Inc.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (103), Referenced by (49), Classifications (5), Legal Events (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application claims benefit of priority of U.S. Provisional Application Ser. No. 60/410,073 filed Sep. 12, 2002.
The present disclosure relates to dental impression copings for taking impressions of a dental implant site from which accurate models can be constructed. More particularly, the invention relates to an improved impression coping that utilizes a retention mechanism to connect with the dental implant.
Implant dentistry involves the restoration of an edentulous area in the mouth of a patient. The restorative techniques typically use artificial components, such as abutments and prosthetic teeth that are secured to a dental implant. According to state of the art techniques, this restorative process has several stages.
During an initial stage, the jawbone of the patient is exposed, and a series of drills are used to form a cylindrical cavity (the osteotomy) in the bone. A dental implant is then positioned into the cavity. In a two-stage surgical procedure, the gingival tissue is sutured, and the implant is left in the bone for several months to integrate with surrounding bone and tissue. In a single-stage procedure, this bone-integration period is skipped.
During the next stage, a mold or impression is taken to record the position and orientation of the implant within the mouth. The impression is used to create a plaster model or analogue of the implantation site. This model replicates the placement of the implant and enables dental technicians to fabricate a final prosthetic restoration. After the impression is taken, a temporary healing abutment or temporary prosthesis is attached to the implant. At this time, the gingival tissue is contoured or shaped to receive the final restoration.
In order to produce a final restoration with excellent aesthetics and functionality, the analogue must accurately reflect the position and orientation of the implant in the mouth of the patient. To help achieve this accuracy, one or more indexing means are typically provided on the proximal end of the implant and on the distal end of the impression coping. Typically, the indexing means is a hexagonal projection or indentation or other polygon formed at the coronal end of the implant. When the implant is fully installed in the jawbone of the patient, the indexing means is typically exposed through the crestal bone so that accurate mapping of the implant and surrounding jawbone can occur. However, because the indexing means of the implant is typically quite small and may be recessed partially beneath the gums of a patient, a secondary or intermediate impression element is typically used to help accurately transfer the orientation of the indexing means of the implant. This intermediate impression element is commonly called a “coping” or “impression coping.” Examples of impression copings are taught in U.S. Pat. No. 4,955,811 entitled “Non-rotational Single-Tooth Prosthodontic Restoration” to Lazzara et al.
Today, two types of impression copings are used: Transfer impression copings that use an “open-tray” technique, and pick-up impression copings that use a “closed-tray” technique. Both types are conveniently adapted to be screw-retained to the implant. The choice of which technique to use (open tray vs. closed tray) is primarily based on individual patient characteristics and preferences of the clinician.
In the closed-tray technique, a threaded screw or bolt is used to temporarily secure the impression coping to the implant fixture. Once the coping is secure, a U-shaped impression tray filled with impression material is placed in the patient's mouth over the implant site. The patient bites down on the tray and squeezes the impression material into the implantation site and area around the impression coping. Within a few minutes, the impression material cures or hardens to a flexible, resilient consistency. The impression tray is then removed from the patient's mouth to reveal an impression of the implant site and coping. The screw connecting the implant is unthreaded, and the impression coping is removed. The coping is then removed from the mouth of the patient and is transferred back into the impression material.
One advantage of the closed-tray technique is that it is simple to perform. The technique, however, is sometimes prone to inaccuracies where sufficient care is not taken during the step of reinserting the coping into the impression material.
The open-tray technique is similar to the closed-tray technique except that a pick-up coping, instead of the transfer coping, is used. The pick-up coping typically includes a portion adapted to be embedded in the impression material. This portion includes a protuberant “lip” or similar projection at the coronal aspect so the coping can be retained in the impression material. In this case, once the impression is taken and the tray is removed, the coping remains in the impression material or is “picked up” and pulled away from the mouth of the patient. To facilitate this procedure, the tray is provided with one or more apertures or openings through which a tool may be inserted to loosen the screw or bolt securing each coping. Thus, this impression technique is commonly referred to as the “open-tray” technique.
The open-tray technique is particularly well suited for multi-site dental restoration procedures, especially when a large divergence angle exists between multiple adjacent implants. The open-tray technique is generally preferred for accuracy, but it is more complex since holes or apertures may need to be cut in the tray. As a result, this technique often takes more time to prepare and execute.
It would be advantageous to have an impression coping that has advantages over prior impression copings and techniques.
The present invention is directed toward an impression coping for taking an accurate impression of a dental implant installed in the jawbone of a patient. The impression coping has a body that extends from a proximal portion to a distal portion. The distal portion is configured and adapted to be secured to the implant, and the proximal portion includes an attachment portion adapted to be embedded in an impression material. Preferably, two attachment members form part of the attachment portion and comprise separate, spaced polygons that project outwardly from the body.
A retention mechanism is located on the body at the distal portion. The retention mechanism is sized and shaped to engage the coronal end of the implant and includes a housing having a locking member and a biasing member. Preferably, the housing forms a bore perpendicular to a longitudinal axis that runs through the body. At one end of the bore, the biasing member is positioned to bias the locking member. The locking member slideably moves along the bore and partially protrudes from the housing to engage a surface at the coronal end of the dental implant. In one embodiment, the locking member is a ball, pin, cylinder, or the like; and the biasing member is a spring.
The housing can be a separate unit and attachable to the distal portion of the body of the impression coping. As such, the retention mechanism and body are easily manufactured and connected. Further, different designs can be employed with the retention mechanism. This mechanism, for example, can utilize multiple locking members and biasing members housed together at the distal portion of the body.
The coping also includes an indexing component, such as a boss or recess, formed for interlockingly engaging a corresponding mating indexing component formed at the coronal end of the implant. Further, the coping may be used as either a transfer coping or pick-up coping, as desired.
As one important advantage of the present invention, connection between the coping and implant does not require a separate retaining screw. Rather, the connection occurs with active or moveable biasing and locking members. Since a retaining screw is not needed, several steps can be eliminated while performing an open-tray impression technique. These steps include: threading the screw into the implant; opening or drilling holes in the impression tray; and unthreading the screw prior to removing the coping from the implantation site. The elimination of these steps saves valuable time during the dental surgery and reduces costs.
As another advantage, the connection between the coping and implant will not damage the internal cavity of the implant and offers a reliable, consistent engagement with the implant.
As another advantage, the retention mechanism is well suited for multi-teeth restorations, especially when some of the implants are angled with respect to one another. In this situation, when the implants are not all vertically oriented, the copings are less prone to jam or wedge when the impression tray is lifted and removed from the mouth of the patient.
As yet another advantage, the retention mechanism is durable and formed of a corrosive resistant and biocompatible material well suited for implant dentistry. This mechanism is easily manufactured and connected to the distal portion of the body.
Accordingly, the present invention comprises a combination of features and advantages that overcome various problems, deficiencies, or shortcomings associated with prior devices. The various features and advantages of the invention will be readily apparent to those skilled in the art upon referring to the accompanying drawings and reading the following detailed description of the preferred embodiments of the invention.
For a more detailed description of preferred embodiments of the present invention, reference will now be made to the accompanying drawings, wherein:
As shown in
The hexagonal recess 18 of the implant is configured to provide anti-rotational engagement with various dental components, such as the impression coping of the present invention. Alternatively, this anti-rotational engagement could be provided as a hexagonal post or protrusion to engage a corresponding recess. Further, as known to those skilled in the art, other anti-rotational connections (such as octagons, triangles, stars, splines, and the like) are also available.
The attachment portion 36 is adapted to be embedded in impression material. This portion includes two attachment members 50 that extend outwardly from a cylindrical portion 52 of body 30. Each attachment member is formed as a flat hexagon extending between top and bottom surfaces. The hexagons are parallel with one another, with one hexagon being larger than the other.
Although the attachment portion 36 is shown to have two attachment members 50, it will be appreciated that other configurations adapted to be embedded in impression material will work as well. The attachment portion, for example, could include one or more attachment members formed as polygons other than hexagons. Regardless of the geometry, the attachment members preferably are ergonomic and sized to be fit in all areas of the jawbone, including the lower anterior mandible where interproximal space between adjacent dentition or abutments is minimal.
As noted, distal portion 34 of body 30 includes an indexing portion 40. This portion is configured as a hexagonal protrusion and is adapted to engage the hexagonal recess or bore 18 at the coronal end 20 of the dental implant. Together, bore 18 and the hexagonal protrusion 40 connect to provide anti-rotational engagement between the impression coping and dental implant.
Like the hexagonal recess 18 of the implant 12, the indexing portion 40 may be formed in a wide variety of other shapes that may be used to provide anti-rotational connection between the implant and impression coping. For example, the indexing portion could comprise either a recess or protrusion formed as various polygons and other configurations known to those skilled in the art, such as an octagon, triangle, square, star, spline, etc.
As best shown in
Although the top engagement portion 66 and recess 70 are shown as male and female hexagons, respectively, other configurations known to those skilled in the art can be employed as well. For example, mating recesses and protrusions can be used for either component. Further, the recess and protrusion can be formed as various polygons and other configurations known to those skilled in the art, such as an octagon, square, triangle, star, spline, etc.
As best shown in
Preferably, the locking member is formed as a ball, and the biasing member is formed as a spring. Both the ball and spring are located in the axial bore 78 to slideably move in the bore. Specifically, one end of the spring is abutted against the ball to bias the ball partially out of the bore 78. A lip or ridge 82 is located at one end of the bore to prevent the ball from exiting the bore and the housing. The housing may include a stop member or plug 84 that closes one end of the bore and prevents the spring from exiting the bore. Here, stop member 84 is formed as a cylinder that is press-fit into bore 78.
One skilled in the art will appreciate that the locking member and biasing member can have various other configurations besides a ball and spring and still be within the scope of the invention. The locking member, for example, can be a pin, button, roller, cylinder, or the like. Further, the biasing member can be a coiled spring or any one of various biasing devices known to those skilled in the art.
Looking now to
Preferably, the locking member 62 is formed from hard material, such as ceramic, ruby, or silicone nitride. As one advantage, a ceramic ball will not leave a residue or deposit on the internal surface or wall of the implant where the implant and ball contact.
Preferably, the biasing member 64 is formed from a biocompatible, corrosive resistant material, such as titanium. Other materials include stainless steel (such as SS 17-4) coated with an amorphous diamond coating. For example, a titanium spring is biocompatible and will not corrode.
One advantage of the present invention is that the connection between the impression coping and the implant is consistent and reliable. This connection is not based on a frictional taper fit or a snap-fit but on an active or moveable locking member and biasing member. Further, the retention mechanism will not damage the internal cavity of the implant or leave micro-fragments or residuals from the locking member.
It will be appreciated that the present invention could incorporate a housing and retention mechanism with other configurations not departing from the scope of the invention.
Other embodiments are within the scope of the invention too. Various combinations of multiple balls and springs can be used. Two balls, for example, could be employed in a single bore that extended entirely across the housing; one ball could be positioned at the first end of the spring and a second ball at the other end. Further, as illustrated in
As one advantage of the present invention, the impression coping is well suited for multi-teeth restorations, especially when some of the implants are angled with respect to one another. In this situation, when the implants are not all vertically oriented, the copings are less prone to jam or wedge when the impression tray is lifted and removed from the mouth of the patient. Specifically, the ball or balls of the retention mechanism are able to slideably move into the housing and out of engagement with the surface of the implant. This movement helps to prevent the copings from becoming wedged or jammed while engaged with the implant.
As another important advantage of the present invention, connection between the coping and implant does not require a separate retaining screw. Rather, the connection occurs with active or moveable biasing and locking members. Since a retaining screw is not needed, several steps can be eliminated while performing an open-tray impression technique. These steps include: threading the screw into the implant; opening or drilling holes in the impression tray; and unthreading the screw prior to removing the coping from the implantation site. The elimination of these steps saves valuable time during the dental surgery and reduces costs.
As understood by those skilled in the art, the precise configuration and dimensions of the various components of the impression coping may vary depending upon, for example, the kind and size of the implant, the location of the osteotomy, or the number and formation of impressions to be taken. Further, it will be appreciated that the impression coping can be configured and used as either a pick-up type coping or as a transfer type coping.
While preferred embodiments of this invention have been shown and described, modifications thereof can be made by one skilled in the art without departing from the spirit or teaching of this invention. The embodiments described herein are exemplary only and are not limiting. Many variations and modifications of the system, apparatus, and methods are possible and are within the scope of the inventions claimed below. Accordingly, the scope of protection is not limited to the embodiments described herein, but is only limited by the claims that follow, the scope of which shall include all equivalents of the subject matter of the claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3708883||Jan 4, 1971||Jan 9, 1973||Flander S||Dental implant and method for using the same|
|US3878610||Nov 19, 1973||Apr 22, 1975||Coscina William Alfred||Low profile dental impression tray and set of such trays|
|US4011602||Oct 6, 1975||Mar 15, 1977||Battelle Memorial Institute||Porous expandable device for attachment to bone tissue|
|US4708654||Nov 4, 1985||Nov 24, 1987||The Institute For Applied Biotechnology||Positive cast model of an upper and lower jaw, and a method and means for producing such a model|
|US4744753||Oct 20, 1986||May 17, 1988||Ross Systems Corporation||Methods for forming dental prosthesis|
|US4778386||Mar 19, 1986||Oct 18, 1988||Spiry Jean Louis||Ring for the construction of dental crowns and method of restoration|
|US4850870||Oct 23, 1987||Jul 25, 1989||Implant Innovations, Inc.||Prosthodontic restoration components|
|US4854872||Sep 24, 1987||Aug 8, 1989||Detsch Steven G||Prosthetic implant attachment system and method|
|US4955811||Jun 23, 1988||Sep 11, 1990||Implant Innovations, Inc.||Non-rotational single-tooth prosthodontic restoration|
|US4961706||Jul 7, 1988||Oct 9, 1990||Dentsply Research & Development Corp.||Method for obtaining a band technique dental impression|
|US5004421||Jul 27, 1990||Apr 2, 1991||Sargon Lazarof||Dental implant and method of using same|
|US5022860||Dec 13, 1988||Jun 11, 1991||Implant Innovations, Inc.||Ultra-slim dental implant fixtures|
|US5074791||Jul 16, 1990||Dec 24, 1991||Itzhak Shoher||Method for constructing a dental bridge using a prefabricated pontic|
|US5078606||Jan 22, 1990||Jan 7, 1992||Astra Meditec Aktiebolag||Method for affixing a dental prosthesis|
|US5087199||Dec 24, 1990||Feb 11, 1992||Sargon Lazarof||Dental implant and method of using same|
|US5094620||Jul 20, 1990||Mar 10, 1992||Nordin Harald E||Anchorage system for an artificial tooth|
|US5106299 *||Jun 25, 1991||Apr 21, 1992||Ghalili Kambiz M||Dental prosthesis for use with an oral implant, and method of installation|
|US5106300||Sep 26, 1990||Apr 21, 1992||Voitik Anton J||Dental implant attachment structure and method|
|US5120223||May 22, 1991||Jun 9, 1992||Bernard Weissman||Apparatus and method for dental prosthesis|
|US5125839||Sep 28, 1990||Jun 30, 1992||Abraham Ingber||Dental implant system|
|US5125841||Jan 16, 1991||Jun 30, 1992||Nobelpharma Ab||Impression top|
|US5135395||Jul 5, 1990||Aug 4, 1992||Marlin Gerald M||Implant collar and post system|
|US5192207||Sep 17, 1991||Mar 9, 1993||Rosellini Davey G||Composite resin crown, replacement tooth and method|
|US5195891||Dec 6, 1990||Mar 23, 1993||Sulc Josef M||Adjustable dental implant system|
|US5302125||Oct 22, 1992||Apr 12, 1994||Kownacki Charles D||Dental prosthetic implant|
|US5332390||Oct 5, 1992||Jul 26, 1994||Rosellini Davey G||Shell tooth form|
|US5344457||Feb 2, 1993||Sep 6, 1994||The University Of Toronto Innovations Foundation||Porous surfaced implant|
|US5350302||Jul 30, 1992||Sep 27, 1994||Marlin Gerald M||Implant collar and post system|
|US5385469||Apr 30, 1993||Jan 31, 1995||Weissman; Bernard||Method for forming a coronal replacement for a tooth and product for casting the crown|
|US5417570||Jan 3, 1994||May 23, 1995||Zest Anchors, Inc.||Dental anchor assembly|
|US5470230||Sep 30, 1994||Nov 28, 1995||Daftary; Fereidoun||Anatomical dental implant with expandable root|
|US5487663||Dec 15, 1994||Jan 30, 1996||Wilson; George M.||Oral appliances and method|
|US5489210||May 13, 1994||Feb 6, 1996||Hanosh; Frederick N.||Expanding dental implant and method for its use|
|US5513989||Apr 4, 1994||May 7, 1996||Crisio; Raymond A.||Dental implant saddle stabilizer|
|US5527182||Dec 23, 1993||Jun 18, 1996||Adt Advanced Dental Technologies, Ltd.||Implant abutment systems, devices, and techniques|
|US5538426||Apr 16, 1993||Jul 23, 1996||Stewart Peter Harding||Method of forming a dental prosthesis for mounting in an implant, a method of forming a dental model for use therein, a dental formation mounting arrangement|
|US5556278||Sep 7, 1994||Sep 17, 1996||Meitner; Sean W.||Method for making and using a template for a dental implant osteotomy and components relating thereto|
|US5564921||Apr 25, 1995||Oct 15, 1996||Marlin; Gerald M.||Method of forming an abutment post|
|US5564924||Feb 21, 1995||Oct 15, 1996||Kwan; Norman H.||Hexagonal abutment implant system|
|US5571016||Jan 24, 1995||Nov 5, 1996||Nobelpharma Ab||Dental implant system|
|US5624263||Jan 11, 1996||Apr 29, 1997||Babaian; Armen A.||Dental foil compression device|
|US5658147||Sep 19, 1995||Aug 19, 1997||Shopvest, Inc.||Working model for prosthodontic preparation of a crown for installation on an implant fixture|
|US5662476||Jun 7, 1995||Sep 2, 1997||Nobel Biocare Ab||Prosthetic implant restoration method|
|US5681167||Jan 5, 1996||Oct 28, 1997||Lazarof; Sargon||Dental assembly and process for preparing a tooth prosthesis|
|US5685715||Mar 10, 1995||Nov 11, 1997||Beaty; Keith D.||Self-indexing transfer impression coping|
|US5688123||May 4, 1995||Nov 18, 1997||Degussa Aktiengesellschaft||Transfer cap for dental implants|
|US5722832||Dec 2, 1996||Mar 3, 1998||White; Dennis J.||Method and material for taking dental impressions|
|US5725375||May 25, 1995||Mar 10, 1998||Implant Innovations, Inc.||Anti-rotational connecting mechanism|
|US5762500||Apr 7, 1997||Jun 9, 1998||Lazarof; Sargon||Process for preparing a tooth prosthesis for attachment to an abutment within a mouth of a patient|
|US5829977||Oct 15, 1996||Nov 3, 1998||Implant Innovations, Inc.||Two-piece dental abutment|
|US5871358||Jun 27, 1997||Feb 16, 1999||Nobel Biocare Ab||Prosthetic implant restoration method|
|US5873721||Jun 12, 1996||Feb 23, 1999||Adt Advanced Dental Technologies, Ltd.||Implant abutment systems, devices, and techniques|
|US5882200||Mar 15, 1996||Mar 16, 1999||Institut Straumann Ag||Device for connecting a dental implant to a conical secondary element|
|US5890896||Mar 14, 1997||Apr 6, 1999||Padial; Jose Jesus Castro||Device for the application of an impression material to the occlusal surface of teeth|
|US5899695||Nov 8, 1994||May 4, 1999||Lazzara; Richard J.||Anatomic interchangeable healing abutment and impression coping|
|US5904483 *||Nov 13, 1996||May 18, 1999||Wade; Curtis K.||Dental implant systems and methods|
|US5947736||May 27, 1998||Sep 7, 1999||Behrend; Donald Albert||Occlusal registration coping system|
|US5993211||Apr 17, 1996||Nov 30, 1999||Astra Aktiebolag||Ball impression coping|
|US6030219||Oct 13, 1998||Feb 29, 2000||Zest Anchors, Inc.||Dental attachment assembly|
|US6056547||Mar 5, 1997||May 2, 2000||Medentech, Inc.||Impression and foundation system for implant-supported prosthesis|
|US6068478||Jan 31, 1997||May 30, 2000||Institut Straumann Ag||Impression system for an end of an implant projecting from a human tissue structure|
|US6142782||May 22, 1998||Nov 7, 2000||Lazarof; Sargon||Implant assembly and process for preparing a prosthetic device|
|US6159010||Apr 20, 1999||Dec 12, 2000||Implant Innovations, Inc.||Fenestrated dental coping|
|US6213773||May 10, 1999||Apr 10, 2001||Neal B. Gittleman||Reduced height dental impression post|
|US6217331||Oct 1, 1998||Apr 17, 2001||Implant Innovations, Inc.||Single-stage implant system|
|US6227856||Jan 23, 1998||May 8, 2001||Implant Innovations, Inc.||Abutment and coping system for use with dental implants|
|US6283752||Jul 13, 1999||Sep 4, 2001||Nobel Biocare Ab||Universal impression coping system|
|US6299447||Dec 16, 1999||Oct 9, 2001||Zest Anchors, Inc.||Dental attachment assembly|
|US6332777 *||May 20, 1998||Dec 25, 2001||Franz Sutter||Device for forming a dental prosthesis|
|US6394809||Dec 7, 2000||May 28, 2002||Implant Innovations, Inc.||Single-stage implant system|
|US6488501||Jun 1, 1999||Dec 3, 2002||Osteo-Ti Ltd||Transfer jig for dental implants and method for making a model|
|US6508650||Apr 6, 2001||Jan 21, 2003||Neal B. Gittleman||Winged impression cap for reduced height dental impression post|
|US6540514||Feb 26, 1998||Apr 1, 2003||Theodore S. Falk||Method for isolating a dental implant|
|US6672871||Jun 15, 2001||Jan 6, 2004||Nobel Biocare Ab||Coping with standoffs|
|US6758672||Jan 17, 2001||Jul 6, 2004||Implant Innovations, Inc.||Preparation coping for creating an accurate permanent post to support a final prosthesis and method for creating the same|
|US6758782||Nov 26, 2002||Jul 6, 2004||Gkn Automotive Gmbh||Actuating mechanism for axial setting purposes, having a double function|
|US6824386||Nov 1, 2001||Nov 30, 2004||Astra Tech Ab||Components for improved impression making|
|US20010034008||Jan 17, 2001||Oct 25, 2001||Porter Stephan S.||Preparation coping for creating an accurate permanent post to support a final prosthesis and method for creating the same|
|US20020039718||Sep 28, 2001||Apr 4, 2002||Biohex Corporation||Dental implant system and additional methods of attachment|
|US20020106610||Aug 30, 2001||Aug 8, 2002||Hurson Steven M.||Impression cap|
|US20030082499||Nov 1, 2001||May 1, 2003||Anders Halldin||Components and method for improved impression making|
|US20030175655||Mar 13, 2002||Sep 18, 2003||Klardie Michael R.||Impression cap|
|US20030190586||Mar 31, 2003||Oct 9, 2003||Falk Theodore S.||Method and apparatus for isolating a work object|
|US20030211445||Jan 31, 2003||Nov 13, 2003||Klardie Michael R.||Impression cap|
|US20040096804||Apr 29, 2002||May 20, 2004||Martin Vogt||Assembly for handling an implant|
|US20040209226||May 3, 2004||Oct 21, 2004||Rogers Dan Paul||Single-stage implant system|
|US20040209227||May 3, 2004||Oct 21, 2004||Porter Stephan S.||Preparation coping for creating an accurate permanent post to support a final prosthesis and method for creating the same|
|US20040241610||Dec 30, 2003||Dec 2, 2004||Steve Hurson||Dental implant system|
|DE3110694A1||Mar 19, 1981||Sep 30, 1982||Joannis Bademis||Method of producing a model for dental prosthetic work|
|DE3300764A1||Jan 12, 1983||Jul 12, 1984||Johannes Bademis||Jaw implant comprising an implant body and a mobile attachment fixable thereon|
|DE4326841A1||Aug 10, 1993||Feb 16, 1995||Becker Verfahrenstech||Implant set|
|DE29820971U1||Nov 24, 1998||Mar 25, 1999||Schmidt Achim W||Industriell gefertigte zahnfarbene Vollkeramikringe als transgingivaler Fertigungsbestandteil gängiger Dentalimplantate|
|EP0087578A1||Jan 22, 1983||Sep 7, 1983||BASF Aktiengesellschaft||Acicular ferrimagnetic iron oxide and process for its production|
|EP0879024A1||Jan 31, 1997||Nov 25, 1998||Institut Straumann AG||Impression system for an end of an implant projecting from a human tissue structure|
|EP0879025A1||Jan 31, 1997||Nov 25, 1998||Institut Straumann AG||Impression system for implants with an impression cap|
|EP0986343A1||May 20, 1998||Mar 22, 2000||Friadent GmbH||Device for forming a dental prosthesis|
|EP1082065A1||Jun 1, 1999||Mar 14, 2001||Osteo-TI Limited||Transfer jig for dental implants and method for making a model|
|EP1118312A2||Jan 17, 2001||Jul 25, 2001||Implant Innovations, Inc.|
|WO1996029019A1||Mar 15, 1996||Sep 26, 1996||Institut Straumann Ag||Connector for tooth replacements implant-mounted|
|WO1997017907A1||Nov 15, 1996||May 22, 1997||Wade Curtis K||Dental implant systems and methods|
|WO1997024996A2||Nov 14, 1996||Jul 17, 1997||Sargon Lazarof||Dental assembly and process for preparing a tooth prosthesis|
|WO1997028756A1||Jan 31, 1997||Aug 14, 1997||Institut Straumann Ag||Impression system for implants with an impression cap|
|WO2002024104A1 *||Sep 20, 2001||Mar 28, 2002||Alessandro Cattaneo||Connection for dental prostheses|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US7654824 *||Feb 4, 2004||Feb 2, 2010||Straumann Holding Ag||Extension piece for a dental implant, transfer aid for transferring the position of an implant and of an extension piece, and method for producing a basis for a retention element|
|US8011927||Apr 16, 2009||Sep 6, 2011||Biomet 3I, Llc||Method for pre-operative visualization of instrumentation used with a surgical guide for dental implant placement|
|US8075313||Jan 19, 2009||Dec 13, 2011||Aeton Medical Llc||Transfer copings and related methods for taking implant impressions|
|US8185224||Jun 29, 2006||May 22, 2012||Biomet 3I, Llc||Method for manufacturing dental implant components|
|US8206153||May 5, 2008||Jun 26, 2012||Biomet 3I, Inc.||Method for selecting implant components|
|US8221121||Jul 11, 2011||Jul 17, 2012||Biomet 3I, Llc||Method for pre-operative visualization of instrumentation used with a surgical guide for dental implant placement|
|US8257083||Feb 22, 2008||Sep 4, 2012||Biomet 3I, Llc||Methods for placing an implant analog in a physical model of the patient's mouth|
|US8414296||Jun 19, 2012||Apr 9, 2013||Biomet 3I, Llc||Method for pre-operative visualization of instrumentation used with a surgical guide for dental implant placement|
|US8454363||Aug 28, 2009||Jun 4, 2013||William B. Worthington||Dental implant system|
|US8612037||Apr 4, 2012||Dec 17, 2013||Biomet 3I, Llc||Method for manufacturing dental implant components|
|US8651858||Apr 13, 2009||Feb 18, 2014||Biomet 3I, Llc||Method of creating an accurate bone and soft-tissue digital dental model|
|US8690574||Mar 22, 2011||Apr 8, 2014||Biomet 3I, Llc||Methods for placing an implant analog in a physical model of the patient's mouth|
|US8777612||Nov 14, 2008||Jul 15, 2014||Biomet 3I, Llc||Components for use with a surgical guide for dental implant placement|
|US8851890||Mar 23, 2011||Oct 7, 2014||Straumann Holding Ag||Impression cap for a dental implant|
|US8855800||Apr 4, 2012||Oct 7, 2014||Biomet 3I, Llc||Method for manufacturing dental implant components|
|US8870574||Oct 17, 2013||Oct 28, 2014||Biomet 3I, Llc||Method of creating an accurate bone and soft-tissue digital dental model|
|US8882508||Dec 6, 2011||Nov 11, 2014||Biomet 3I, Llc||Universal scanning member for use on dental implant and dental implant analogs|
|US8888488||Mar 6, 2013||Nov 18, 2014||Biomet 3I, Llc|
|US8920170||Feb 21, 2012||Dec 30, 2014||Aeton Medical Llc||Abutment and abutment systems for use with implants|
|US8926328||Dec 27, 2012||Jan 6, 2015||Biomet 3I, Llc||Jigs for placing dental implant analogs in models and methods of doing the same|
|US8936468||Nov 18, 2011||Jan 20, 2015||Roger S. Ranck||Transfer copings and related methods for taking implant impressions|
|US8944816||May 16, 2012||Feb 3, 2015||Biomet 3I, Llc||Temporary abutment with combination of scanning features and provisionalization features|
|US8944818||May 16, 2012||Feb 3, 2015||Biomet 3I, Llc||Temporary abutment with combination of scanning features and provisionalization features|
|US8967999||Jun 15, 2011||Mar 3, 2015||Biomet 3I, Llc||Components for use with a surgical guide for dental implant placement|
|US8998614||Jul 20, 2012||Apr 7, 2015||Biomet 3I, Llc||Methods for placing an implant analog in a physical model of the patient's mouth|
|US9011146||Jun 15, 2011||Apr 21, 2015||Biomet 3I, Llc||Components for use with a surgical guide for dental implant placement|
|US9089380||Jun 22, 2012||Jul 28, 2015||Biomet 3I, Llc||Method for selecting implant components|
|US9089382||Oct 18, 2012||Jul 28, 2015||Biomet 3I, Llc||Method and apparatus for recording spatial gingival soft tissue relationship to implant placement within alveolar bone for immediate-implant placement|
|US9108361||Sep 19, 2014||Aug 18, 2015||Biomet 3I, Llc||Method for manufacturing dental implant components|
|US9204941||Oct 17, 2013||Dec 8, 2015||Biomet 3I, Llc||Method of creating an accurate bone and soft-tissue digital dental model|
|US9357927 *||Mar 16, 2012||Jun 7, 2016||Elos Medtech Pinol A/S||Dental abutment for oral scanning|
|US9452032||Jun 27, 2013||Sep 27, 2016||Biomet 3I, Llc||Soft tissue preservation temporary (shell) immediate-implant abutment with biological active surface|
|US9474588||Jun 24, 2015||Oct 25, 2016||Biomet 3I, Llc||Method and apparatus for recording spatial gingival soft tissue relationship to implant placement within alveolar bone for immediate-implant placement|
|US20040180308 *||Feb 4, 2004||Sep 16, 2004||Daniel Ebi||Extension piece for a dental implant, transfer aid for transferring the position of an implant and of an extension piece, and method for producing a basis for a retention element|
|US20080171304 *||Jan 11, 2007||Jul 17, 2008||Mcginnis William J||Dental implant kit and method of using same|
|US20080172106 *||Jan 11, 2007||Jul 17, 2008||Mcginnis William J||Osteogenic stimulus device, kit and method of using thereof|
|US20080172107 *||Jan 11, 2007||Jul 17, 2008||Mcginnis William J||Stand alone osteogenic stimulus device and method of using|
|US20080233538 *||Mar 13, 2008||Sep 25, 2008||Straumann Holding Ag||Two-part screw for a dental implant|
|US20090263764 *||Apr 16, 2009||Oct 22, 2009||Biomet 3I, Llc|
|US20100151420 *||Dec 11, 2008||Jun 17, 2010||Ranck Roger S||Fixtures for dental implants|
|US20100151423 *||Jul 23, 2009||Jun 17, 2010||Ranck Roger S||Temporary restorations and related methods|
|US20100159417 *||Dec 18, 2008||Jun 24, 2010||Dale Whipple||Dental impression cap with engagement feature|
|US20100184002 *||Jan 19, 2009||Jul 22, 2010||Ranck Roger S||Transfer copings and related methods for taking implant impressions|
|US20100196855 *||Jan 28, 2010||Aug 5, 2010||Straumann Holding Ag||Impression post for a dental implant|
|US20110086327 *||Oct 9, 2009||Apr 14, 2011||Sheldon Lerner||Combination UCLA Impression Coping and Installation Procedure|
|US20140011155 *||Mar 16, 2012||Jan 9, 2014||Elos Medtech Pinol A/S||Dental abutment for oral scanning|
|EP2213259A1||Jan 31, 2009||Aug 4, 2010||Straumann Holding AG||Impression jig for use with dental implants|
|EP2368518A1||Mar 25, 2010||Sep 28, 2011||Straumann Holding AG||Impression coping for a dental implant|
|WO2008097186A1 *||Feb 6, 2008||Aug 14, 2008||Biomain Ab||An attachment system for attaching a dental superstructure to an implant, an attachment device and an anchoring element|
|U.S. Classification||433/173, 433/172|
|Nov 22, 2002||AS||Assignment|
Owner name: CENTERPULSE DENTAL INC., CALIFORNIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KUMAR, AJAY;ARAVENA, INES;REEL/FRAME:013521/0274
Effective date: 20021115
|Jul 30, 2004||AS||Assignment|
Owner name: ZIMMER DENTAL, INC., CALIFORNIA
Free format text: CHANGE OF NAME;ASSIGNOR:CENTERPULSE DENTAL INC.;REEL/FRAME:015629/0191
Effective date: 20040108
|Nov 20, 2009||FPAY||Fee payment|
Year of fee payment: 4
|Nov 27, 2013||FPAY||Fee payment|
Year of fee payment: 8